Oral exerciser



FIG. 1 is a top perspective view of an oral exerciser showing my newdesign;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof;and,

FIG. 7 is a rear view thereof.;

FIG. 8 is a top perspective view of a second embodiment thereof;

FIG. 9 is a bottom perspective view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a left side view thereof;

FIG. 13 is a front view thereof; and,

FIG. 14 is a rear view thereof.

In FIGS. 8-14, the broken lines illustrate structure or features whichform no part of the claimed design.

CLAIM The ornamental design for an oral exerciser, as shown anddescribed.